Giraud, Alain. Ionospheric techniques and phenomena / by Alain Giraud & Michel Petit. - Dordrecht, Holland : D. Reidel, c1978. - xx, 264 p. : ill. ; 24 cm. - Geophysics and astrophysics monographs ; vol. 13 . Includes subject index. Bibliography: p. 251-260. ISBN: 9027704996 Subjects--Topical Terms: Ionosphere.Astrophysics